JPH0138514B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure for removing beard scum in a rotary electric shaver.

When trying to clean a conventional rotary electric razor, first remove the outer blade from the main case, remove the inner blade, and clean the inside of the main case with a brush, etc., where the beard waste accumulates, the inner blade, and the inside of the outer blade. However, the outer blade or inner blade had to be cleaned with scum, which looked like filth, and had to be held in the hand to clean it, giving off a feeling of disgust. Also, if you leave the scum build up, the contact resistance between the outer and inner blades will increase, and the rotational speed will drop, resulting in poor cutting quality.In addition, the accumulated scum will blow out from the hole in the outer blade, causing a condition called splatter. It was something that made me feel uncomfortable.

As a way to solve the above problems,
A structure like 9507 has been proposed. According to the content of the proposal, a rotor body is provided that rotates integrally with an inner cutter that slides into pressure contact with the outer cutter for cutting the beard when performing a shaving operation. The machine rotates integrally with the blade and introduces the cut hair waste into a separate dust collection chamber, and when processing the shaved hair waste, only the rotor body is rotated at high speed independently to remove the remaining hair waste in the cutting chamber. When the dust is introduced into the dust collection chamber and a lid for opening and closing the dust collection chamber and the outside of the case is opened, the hair debris accumulated in the dust collection chamber is scattered to the outside of the case. With the above structure, the cut hair waste is collected in the dust collection chamber, but the hair waste contains a large amount of the shaved skin (stratum corneum) along with the fat leaked from the skin and the beard. The hair debris accumulated in the dust collection chamber will harden over time, so even if the rotor body is rotating at high speed outside the dust collection chamber, the hair debris will be scattered to the outside of the case. That had become impossible. The present invention eliminates the above-mentioned drawbacks and provides a practical lint cleaning structure.

The gist of the present invention is to provide a main body case that supports a motor, an outer blade attached to an upper part of the main body case,
a connecting tool attached to the tip of a motor shaft of a motor disposed in the upper part of the main body case; and an inner blade support that holds an inner blade body supported by the connecting tool and sliding elastically on the inner surface of the outer blade. a hair waste receptacle that is arranged within the side wall of the upper part of the main body case and below the inner blade support and is moved up and down by an external operation; It has a dust-sweeping piece that is rotatably supported within the whisker debris reservoir, and the dust-sweeping piece and the inner blade support or the connector include:
The vertical movement of the dust-sweeping piece based on the vertical movement of the lint tray connects the dust-sweeping piece to the inner blade support or the connector, causing the dust-sweeping piece to rotate, or the connection to be released. A mating part and an engaged part are provided, and the upper side wall of the main body case is further provided with an external communication hole through which beard debris is discharged to the outside by the rotation of the dust-sweeping piece. This is the cleaning structure of an electric shaver.

An embodiment of the present invention will be explained in detail with reference to the drawings. Fig. 1 is a partially assembled sectional view showing an embodiment of the present invention. FIG. 2 is a diagram from FIG. 1 in which the lint tray rotates and floats to the cleaning state. FIG. 3 is a diagram showing the through-hole of the case and the pin portion of the lint tray engaged. Figure 4 is A- in Figure 1.
It is an A plane sectional view. FIG. 5 is a sectional view taken along the line BB in FIG. 2. FIG. 6 is a cross-sectional view taken along the line C--C in FIG. 1, showing an engaged state of the connecting tool and the inner cutter support. In Figure 1, 1 is a case, 2 is the case 1
A motor fixed by a screw 20 to the upper part of the
3 is an outer cutter, 4 is an inner cutter, and 5 is an inner cutter support that supports the inner cutter 4 and has a fixed spring 6 for pressing the inner cutter 4 into contact with the outer cutter 3; Part 7
are integrally formed. 8 is a hair waste receptacle and case 1
It is rotatably inscribed inside the side wall of the upper part. Reference numeral 9 denotes a dust-sweeping piece, which has a slight clearance on the inner wall surface of the hair dust receiver 8, and is fitted loosely around the central portion 8a of the hair dust receiver 8 so as to be freely rotatable therein. A convex portion 10 is integrally formed on the upper surface of the dust-sweeping piece 9 and can be engaged with and disengaged from a clutch portion 7 formed integrally with the lower part of the inner cutter support 5. (The clutch portion 7 and the protrusion 10 may be serrated pawls.
0 corresponds to the engaging part and the engaged part. ) 11 is an outer frame for fixing the outer cutter 3; 12 is a connector fixed to the shaft of the motor 2 and transmits the driving force of the motor 2 to the inner cutter support 5; 13 is the case 1;
A ring rotatably surrounds the outer surface of the
As shown in FIG. 4, a pin 14 integrally protruding from the lint tray 8 disposed inside the case 1 passes through a through hole 15 formed in the side wall of the case 1, and passes through the ring 13.
is engaged with. To assemble, after bending the hair waste receiver 8 inward and inserting the pin 14 into the through hole 15, remove the hair waste receiver 8.
bend inward and insert the pin 14 into the hole of the ring 13.
Insert. 16 is a cleaning hole in the side wall of the lint tray 8; 17 is a cleaning hole in the side wall of the case; and 18 is a cleaning hole in the ring 13. The above structure is used in the state shown in FIGS. 1 and 4 during normal shaving (the motor and the inner blade support rotate in the normal direction), and the cleaning holes 16, 17, and 18 do not match. Further, the clutch portion 7 formed at the lower part of the inner blade support 5 does not engage with the convex portion 10 formed on the dust-sweeping piece 9. A through hole 15 in the side wall of the case 1 shown in FIG. When it is at the lowest position, the cleaning hole 16,1
7 and 18 do not match, but when the lint receiver 8 that engages with the ring 13 moves to the uppermost position by rotating the ring 13, the respective holes match, and as the ring 13 moves, the ring The motor is reversed by the switch on the inner surface of the case 13 and the peripheral wall of the case 1, and the lint tray 8 floats up, so that the tip part 7 and the convex part 10 engage, and the dust-sweeping piece 9 rotates together with the inner blade support 5 (reverse rotation). ), the hair and the like on the inner surface of the hair receptacle 8 are scattered from the cleaning hole. Also, the motor 2
In order to transmit the driving force of the motor 2 to the inner blade support 8, the connection 12 and the inner blade support 5 fixed to the shaft are shaped like a circle with both sides cut out, as shown in FIG. , is transmitted when the cut surfaces 19, 19 face each other and lock. Further, the parts forming the clutch mechanism that engages and disengages the clutch engaging portion of the dust-sweeping piece 9 may be not only the inner blade support 5 but also the connecting tool 12.

For example, when a clutch structure is formed by the connector 12 and the dust-sweeping piece 9, in the state shown in FIG. The center hole and the corresponding small-diameter connector 12 are free, and when the dust-sweeping piece 9 is in the state shown in FIG. The connecting tool 12 and the dust-sweeping piece 9 rotate integrally by being inserted into and engaged with the large-diameter portion of the connecting tool 12 formed in the external shape of the corresponding position. In addition, an engaging claw is provided on the lower surface of the collar formed above the dust-sweeping piece 9 in the connector 12, as shown in FIG.
The dust-sweeping piece 9 formed as shown in FIG. 2 may be engaged with and disengaged from the convex portion 10 by vertical movement of the lint receiver 8 as shown in FIGS. 1 and 2. In addition, in the above-mentioned configuration, the connecting tool 12 is provided with a small diameter part, a large diameter part, and a flange and engaging claws so that when the dust cleaning piece 9 is moved downward, it engages with the connecting tool 12, and when it is moved upward, it is disengaged. It is also possible to provide an engaging portion for the dust-sweeping piece 9 thereon. Note that there are many other possible clutch structures.

Incidentally, the motor may not necessarily rotate in the reverse direction, but may perform the clutch action only by rotating in the forward direction.
However, since the cutting edge of the inner cutter body 4 is bent so as to be tilted toward the normal rotation side, when the inner cutter body 4 is rotated in the reverse direction, the inner cutter body will tilt as if twisting, weakening the pressure contact between the outer cutter and the inner cutter, and reducing power consumption. It can also remove dust from the inner blade. or,
A part of the dust-sweeping piece 9 comes close to the inner surface of the frame body to which the outer cutter 3 is fixed, thereby increasing the cleaning effect.

The present invention is constructed as described above, and even if the hair debris contains fat leaked from the skin, the cleaning piece is rotated by the strong force of the motor, agitates the hair debris, and removes the hair from the inner surface of the hair debris receiver, etc. Since the lint attached to the corners where lint tends to accumulate is also neatly removed and discharged from the cleaning hole, cleaning can be done with a simple operation without requiring much effort, and the cleaning can be done without touching the lint. Furthermore, since the dust-sweeping piece does not rotate during shaving, the shaved hair is not stirred in the cutting chamber, and no hair debris is scattered from the outer cutter hole. In addition, when the motor, which is the drive source, is driven in the forward direction when shaving, and when the motor is used in the reverse direction during cleaning, the clutch part provided on the dust sweeper and the inner blade support may be difficult to operate when the motor rotates in the forward direction. It does not engage even if the operation is performed, and it engages smoothly when the motor is reversed, so the dust sweeper only rotates during cleaning, so when the motor rotates forward, the dust in the cutting chamber is agitated and removed from the outer blade hole. There is no scattering of whisker debris, and during cleaning, the cleaning holes align and the air sucked in from the outer blade hole is discharged from the cleaning hole along with whisker debris by the rotational force of the dust sweeper and wind pressure. The hair scraps stirred in the cutting chamber will not scatter from the outer blade hole.

In the above embodiment, when the dust-sweeping piece rotates during cleaning, the inner blade also rotates, but the inner blade may be stopped. For example, only the inner blade rotates when not cleaning, and only the dust sweeper rotates when cleaning.
A clutch mechanism may be provided between the connector, the inner blade support, and the dust-sweeping piece. For example, when the ring 13 is rotated to move the lint tray 8 upward, the dust sweeper 9
is lifted, and the inner peripheral part of the dust-sweeping piece 9 and the connecting tool 1
At the same time, the central part of the dust-sweeping piece 9 pushes up the inner blade support 5 , and the center hole (non-circular shape) of the inner blade support 5 engages with the non-circular part of the connector 12 . Since the inner cutter support 5 moves from the circular portion to the circular portion above it, the driving engagement between the inner cutter support 5 and the connecting tool 12 is disengaged, and the rotation of the inner cutter support stops.

Furthermore, in the above explanation, the cutting edge of the inner cutter body 4 is bent in the direction of forward rotation, so when the inner cutter is reversed, the inner cutter body will fold down in the forward rotation direction, and the inner cutter body and the outer cutter The reversal torque due to pressure contact is reduced, which also has the advantage of reducing power consumption.

[Brief explanation of drawings]

FIG. 1 is a partially assembled sectional view showing one embodiment of the present invention. FIG. 2 is a diagram from FIG. 1 in which the lint tray has rotated and floated to the cleaning state. FIG. 3 is a diagram showing the through-hole of the case and the pin portion of the lint tray engaged. FIG. 4 is a sectional view taken along the line AA in FIG. 1. FIG. 5 is a sectional view taken along the line BB in FIG. 2. FIG. 6 is a cross-sectional view taken along the line CC in FIG. 1. 1...Case, 2...Motor, 3...Outer blade,
4... Inner blade body, 5... Inner blade support, 6... Spring,
7... Clutch portion, 8... Hair holder, 9... Dust sweeper piece, 10... Convex portion, 11... Outer frame, 12... Connector, 13... Ring, 14... Pin, 15... ...Through hole in case, 16...Cleaning hole, 17
...Cleaning hole, 18...Cleaning hole, 19...Cut surface, 20...Screw.

Claims (1)

[Claims] 1. A main body case supporting the motor, an outer blade attached to the upper part of the main body case, a connecting tool attached to the tip of the motor shaft of the motor arranged in the upper part of the main body case, and a connecting tool attached to the connecting tool. an inner cutter support that holds an inner cutter body that is supported and slides elastically on the inner surface of the outer cutter, and within a side wall of the upper part of the main body case,
and a lint tray disposed below the inner blade support and moved up and down by an external operation, and a dust sweeper rotatably supported within a stubble trap of the lint tray disposed above the lint tray. The dust-sweeping piece and the inner blade support or the connecting device have a vertical movement of the dust-sweeping piece based on the vertical movement of the lint holder, so that the dust-sweeping piece is attached to the inner blade support. An engaging part and an engaged part are provided on the side wall of the upper part of the main body case to rotate the dust-sweeping piece or to release the connection. A cleaning structure for an electric shaver, characterized in that an external communication hole is provided through which beard debris is discharged to the outside by the rotation of the piece.